The present study has evaluated factors relating to progression in scoliosis using the top view. These results may help predict the risk of progression in idiopathic scoliosis.

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Clinical correlations with IgG-rheumatoid factor (IgG-RF) were evaluated in 41 patients with rheumatoid arthritis (RA).The patients with positive IgG-RF with disease duration of less than two years showed increased levels in ESR, C-reactive protein, serum IgG concentrations and Lansbury's index, but they had neither extra-articular disorders nor vascular damage.However, four of eight patients with positive IgG-RF with disease duration of over five years had extra-articular disorders and vascular damage (especially interstitial pneumonia).In one early RA patient with positive IgG-RF who showed decreased levels of ESR and C-reactive protein and serum IgG concentrations, a high titer of IgG-RF was revealed over six months and joint damage progressed. In conclusion, we suggested that measurment of IgG-RF is useful in the clinical evaluation of rheumatoid arthritis associated with extra-articular disorders, vascular damage, and joint damage progression.

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